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US 5,178,516 AGranted
Centrifugal compressor
AssigneeHitachi, Ltd.
InventorsKoji Nakagawa, Takeo Takagi, Junichi Kaneko, Yoshiaki Abe, Haruki Sakai
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AssigneeHitachi, Ltd.
InventorsKoji Nakagawa, Takeo Takagi, Junichi Kaneko, Yoshiaki Abe, Haruki Sakai
Estimating the term…
A centrifugal compressor has diffusers which convert a high velocity, low pressure stream of fluid which flows out of an impeller to a high-velocity high-pressure flow due to the action of a purality of stator blades disposed near the outer periphery of the impeller. In this compressor, the portion of the stator blade or of an auxiliary blade which is provided in the diffuser located on the side of a front shroud is disposed closer to the impeller than the portion thereof located on the side of a main shroud, and the leading edge of the stator blade is thus inclined from the portion thereof located on the side of the main shroud to the portion thereof located on the side of the front shroud. The configuration of the front edge of a stator blade or of an auxiliary blade which is provided in the diffuser is so improved as to restrict back flow which occurs on the side of the front shroud when the flow rate is small and to lower the minimum flow rate. Furthermore, an auxiliary blade and an intermediate blade are disposed between the adjacent stator blades, and the leading edge of the auxiliary blade is so improved as to enlarge the operation range of the diffuser and to improve volume control greatly.
A centrifugal compressor with diffusers provided therein so as to convert kinetic energy of a fluid discharged from an impeller to pressure energy due to a plurality of stator blades disposed near an outer periphery of said impeller,
A centrifugal compressor with diffusers provided therein so as to convert kinetic energy of a fluid discharged from an impeller to pressure energy due to a stator blade disposed near an outer periphery of said impeller,
A centrifugal compressor comprising:
Dependencies are inferred from the claim text.